Facile fabrication of hollow mesoporous silica microspheres with hierarchical shell structure via a sol–gel process
Source abstract
Abstract
A facile method for the preparation of polystyrene/silica (PS/SiO2) composite microspheres via sol–gel process of tetraethylorthosilicate (TEOS) employing polyvinylpyrrolidone-functionalized monodispersed PS microspheres as template is proposed. Hollow mesoporous silica microspheres containing surface silica nanoparticles are successfully fabricated after the calcination of the composite microspheres. The shell thickness, the size of surface silica nanoparticles and the surface morphology of hollow mesoporous silica microspheres can be readily tailored by adjusting the concentrations of TEOS and ammonia (NH4OH). The formation mechanism of the products is detailed through the investigation of the products at different reaction conditions. At the low NH4OH/TEOS volume ratio (<1), intact hollow mesoporous silica microspheres with hierarchical raspberry-like structure can be obtained. This synthesis method is simple, straightforward and suitable for the preparation of the other biomineral nanostructures that are unique carriers in drug delivery, biological and catalytic applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mesoporous Materials and Catalysis · Aerogels and thermal insulation · Layered Double Hydroxides Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Xu XL, Sanford AA (2004) Synthesis and utilization of monodisperse hollow polymeric particles in photonic crystals. J Am Chem Soc 126:7940–794510.1021/ja049453k ↗
2. Chen M, Wu LM, Zhou SX, You B (2006) A method for the fabrication of monodisperse hollow silica spheres. Adv Mater 18:801–80610.1002/adma.200501528 ↗
3. Li M, Zhang C, Yang XL, Xu HB (2013) Microfluidization-assisted synthesis of hollow mesoporous silica nanoparticles. J Sol–Gel Sci Technol 67:501–50610.1007/s10971-013-3107-5 ↗
4. Iovino G, Malvindi MA, Agnello S, Buscarino G, Alessi A, Pompa PP, Gelardi FM (2013) Optical and morphological properties of infrared emitting functionalized silica nanoparticles. Mater Chem Phys 142:763–76910.1016/j.matchemphys.2013.08.041 ↗
5. Shang QQ, Gao LJ, Liu H, Xiao GM (2011) Fabrication of superhydrophobic silica film by removing polystyrene spheres. J Sol–Gel Sci Technol 59:334–33710.1007/s10971-011-2507-7 ↗
6. Zhao YJ, Zhao XW, Sun C, Li J, Zhu R, Gu ZZ (2008) Encoded silica colloidal crystal beads as supports for potential multiplex immunoassay. Anal Chem 80:1598–160510.1021/ac702249a ↗
7. Zhao YJ, Zhao XW, Hu J, Xu M, Zhao WJ, Sun LJ, Zhu C, Xu H, Gu ZZ (2009) Encoded porous beads for label-free multiplex detection of tumor markers. Adv Mater 21:569–57210.1002/adma.200802339 ↗
8. Chen HM, He JH, Tang HM, Yan CX (2008) Porous silica nanocapsules and nanospheres: dynamic self-assembly synthesis and application in controlled release. Chem Mater 20:5894–590010.1021/cm801411y ↗
9. Khanal A, Inoue Y, Yada M, Nakashima K (2007) Synthesis of silica hollow nanoparticles templated by polymeric micelle with core-shell-corona structure. J Am Chem Soc 129:1534–153510.1021/ja0684904 ↗
10. Teng ZG, Han YD, Li J, Yan F, Yang WS (2010) Preparation of hollow mesoporous silica spheres by a sol–gel/emulsion approach. Microporous Mesoporous Mater 127:67–7210.1016/j.micromeso.2009.06.028 ↗
11. Pang HB, Zhou SX, Wu LM, Chen M, Gu GX (2010) Fabrication of silicone oil microcapsules with silica shell by miniemulsion method. Colloid Surf A 364:42–4810.1016/j.colsurfa.2010.04.026 ↗
12. Hu WC, Gu H, Wang JN, Li YX, Wang ZQ (2013) One-step synthesis of silica hollow particles in a W/O inverse emulsion. Colloid Polym Sci 291:2697–270410.1007/s00396-013-3003-0 ↗
13. Sabine S, Johannes AL (2011) Hierarchically structured millimeter-sized (organo) silica spheres with a macroporous shell and a meso/microporous core. Chem Mater 23:2091–209910.1021/cm1033029 ↗
14. Ren Y, Li CX, Lu Y, Wang XD, Zeng XS (2010) Aggregates of cholic acid and benzylamine as templates for the formation of hollow silica spheres. J Mater Sci 45:6830–683310.1007/s10853-010-4893-6 ↗
15. Wan Y, Yu SH (2008) Polyelectrolyte controlled large-scale synthesis of hollow silica spheres with tunable sizes and wall thicknesses. J Phys Chem C 112:3641–364710.1021/jp710990b ↗
16. Wu XF, Lu HR, Wang ZQ, Xu XH (2010) Preparation of hollow silica beads via soft template calcinating route. J Sol–Gel Sci Technol 54:147–15310.1007/s10971-010-2169-x ↗
17. Tan B, Rankin ESD (2005) Dual latex/surfactant templating of hollow spherical silica particles with ordered mesoporous shells. Langmuir 21:8180–818710.1021/la050618s ↗
18. Whitaker AK, Furst ME (2014) Layer-by-layer synthesis of mechanically robust solvent-permeable silica nanoshells. Langmuir 30:584–59110.1021/la402737f ↗
19. Shen BH, Hsieh ML, Chen HY, Wu JY (2013) The preparation of hollow silica spheres with mesoporous shell via polystyrene emulsion latex template and the investigation of ascorbic acid release behavior. J Polym Res 20:220–23010.1007/s10965-013-0220-7 ↗
20. Caruso F (2003) Hollow inorganic capsules via colloid-templated layer-by-layer electrostatic assembly. Top Curr Chem 227:145–16810.1007/3-540-36412-9_6 ↗
21. Zhao B, Collinson MM (2010) Well-defined hierarchical templates for multimodal porous material fabrication. Chem Mater 22:4312–431910.1021/cm101146n ↗
22. Qi GG, Wang YB, Estevez L, Switzer KA, Duan XN, Yang XF, Giannelis EP (2010) Facile and scalable synthesis of monodispersed spherical capsules with a mesoporous shell. Chem Mater 22:2693–269510.1021/cm100174e ↗
23. Jiang QS, Li K, Wei HL, Yi L (2013) Tunable optical stop band of silica shell photonic crystals. J Sol–Gel Sci Technol 67:565–57210.1007/s10971-013-3115-5 ↗
24. Kato N, Ishii T, Koumoto S (2010) Synthesis of monodisperse mesoporous silica hollow microcapsules and their release of loaded materials. Langmuir 26:14334–1434410.1021/la1024636 ↗
25. Yang M, Wang G, Yang ZZ (2008) Synthesis of hollow spheres with mesoporous silica nanoparticles shell. Mater Chem Phys 111:5–810.1016/j.matchemphys.2008.03.014 ↗
26. Guo XM, Liu XG, Xu BS, Dou T (2009) Synthesis and characterization of carbon sphere-silica core–shell structure and hollow silica spheres. Colloid Surf A 345:141–14610.1016/j.colsurfa.2009.04.048 ↗
27. Wu XF, Tian YJ, Cui YB, Wei LQ, Wang I, Chen YF (2007) Raspberry-like silica hollow spheres: hierarchical structures by dual latex-surfactant templating route. J Phys Chem C 111:9704–970810.1021/jp070811q ↗
28. Du X, Liu XM, Chen HM, He JH (2009) Facile fabrication of raspberry-like composite nanoparticles and their application as building blocks for constructing superhydrophilic coatings. J Phys Chem C 113:9063–907010.1021/jp9016344 ↗
29. Su Y, Yan R, Dan MH, Xu JX, Wang D, Zhang WQ, Liu SX (2011) Synthesis of hierarchical hollow silica microspheres containing surface nanoparticles employing the quasi-hard template of poly(4-vinylpyridine) microspheres. Langmuir 27:8983–898910.1021/la2014573 ↗
30. Groen JC, Peffer LAA, Perez-Ramirez J (2003) Pore size determination in modified-micro and mesoporous materials. Pitfalls and limitations in gas adsorption data analysis. Microporous Mesoporous Mater 60:1–1710.1016/S1387-1811(03)00339-1 ↗
31. Takai C, Watanabe H, Asai T, Fuji M (2012) Determine apparent shell density for evaluation of hollow silica nanoparticle. Colloid Surf A 404:101–10510.1016/j.colsurfa.2012.04.019 ↗